Problem comment subcomment

$commenti = Commenti::select('commenti.id AS id','users.username AS username',
        'commenti.id_commenti AS id_commenti','commenti.commento AS commento','commenti.created_at AS created_at')
        ->leftJoin('users', 'users.id', 'commenti.id_users')
        ->where('id_schede', '=',  $request['id_schede'])
        ->get();

        $array_commenti = [];
        $array_subcommenti = [];

        foreach ($commenti as $cmt) {

            if(!$cmt->id_commenti){
                $temp_obj = new \stdClass();
                $temp_obj->id = $cmt->id;
                $temp_obj->username = $cmt->username;
                $temp_obj->id_commenti = $cmt->id_commenti;
                $temp_obj->commento = $cmt->commento;
                // $temp_obj->created_at = $cmt->created_at;
                $temp_obj->subcomment = [];
                array_push($array_commenti, $temp_obj);
            }
            else {
                $temp_obj = new \stdClass();
                $temp_obj->id = $cmt->id;
                $temp_obj->username = $cmt->username;
                $temp_obj->id_commenti = $cmt->id_commenti;
                $temp_obj->commento = $cmt->commento;
                // $temp_obj->created_at = $cmt->created_at;
                $temp_obj->subcomment = [];
                $temp_obj->bool = false;
                array_push($array_subcommenti, $temp_obj);
            }
        }

        foreach ($array_subcommenti as $cmt) {

            if($cmt->bool == false){
                $temp_obj = new \stdClass();
                $temp_obj->id = $cmt->id;
                $temp_obj->username = $cmt->username;
                $temp_obj->id_commenti = $cmt->id_commenti;
                $temp_obj->commento = $cmt->commento;
                // $temp_obj->created_at = $cmt->created_at;
                $temp_obj->subcomment = [];

                foreach ($array_commenti as $ar_cmt) {

                    if($ar_cmt->id == $temp_obj->id_commenti){
                        array_push($ar_cmt->subcomment, $temp_obj);
                        $cmt->bool = true;
                        break;
                    }

                }
            }

        }